text: # Copyright 2015 Google Inc. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  # ==============================================================================
  
  """Test for version 3 of the zero_out op."""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  import tensorflow.python.platform
  
  import tensorflow as tf
  from tensorflow.g3doc.how_tos.adding_an_op import gen_zero_out_op_3
  
  
  class ZeroOut3Test(tf.test.TestCase):
  
    def test(self):
      with self.test_session():
        result = gen_zero_out_op_3.zero_out([5, 4, 3, 2, 1])
        self.assertAllEqual(result.eval(), [5, 0, 0, 0, 0])
  
    def testAttr(self):
      with self.test_session():
        result = gen_zero_out_op_3.zero_out([5, 4, 3, 2, 1], preserve_index=3)
        self.assertAllEqual(result.eval(), [0, 0, 0, 2, 0])
  
    def testNegative(self):
      with self.test_session():
        result = gen_zero_out_op_3.zero_out([5, 4, 3, 2, 1], preserve_index=-1)
        with self.assertRaisesOpError("Need preserve_index >= 0, got -1"):
          result.eval()
  
    def testLarge(self):
      with self.test_session():
        result = gen_zero_out_op_3.zero_out([5, 4, 3, 2, 1], preserve_index=17)
        with self.assertRaisesOpError("preserve_index out of range"):
          result.eval()
  
  
  if __name__ == '__main__':
    tf.test.main()
  